Process of ornamentation



June 15,1926. 1,588,915

M. J. SMITH l OOOOOOOOOOOOOOOOOOOO ON INVENTOR. MRTIN Cl' l SMITH m l www? ATTORNE Patented June 15, 1926.

MARTIN J'. SMITH, OF COLUMBUS, OHIO.

PROCESS OF ORNAMENTATION.

Application filed March 2, 1926. Serial No. 91,781.

My present invention relates to an improved process of ornamentation which involves the use of a mask applied to and partially covering the surface to be ornamented, and utilizing in the process means for cutting away the exposed or uncovered surface in order that the ornamentation when completed may stand out in relief from the surface or ground of they object ornamented. f

In carrying out the process of my invention the mask is molded in a matrix, applied to the surface to be ornamented, and the exposed surface may then be treated or subjected to the action of a sand blast for cutting away the exposed material in a prescribed manner, or the exposed surface may be treated in other suitable manner` for producing a contrast in the appearance of the exposed and unexposed surfaces of the ob ject to be ornamented. Preferably the exposed surface is etched by the action of a sand blast directed against the exposed or uncovered surface of the object, and in this manner the ornamentation may be brought out in bold relief in marble, granite, stone walls, and in more shallow relief in floorings composed of composition material,

stone, or other suitable material.

The invention consists in certain novel sequences or steps in the process of ornamentation as will hereinafter be more fully set forth and claimed.

In the accompanying drawings I have illustrated several ornamental designs embodied in masks, and shall hereinafter set forth the mode of carrying out my process according to the principles of my invention.

Figure l is a plan view of a portion of a soft pliable or flexible mask used in the process of my invention.

l Figure 2 is a plan view of a die or matrix from which the illustrated mask is produced.

Figure 3 is an enlarged vertical sectional view of a portion of the matrix, showing the parallel and border grooves and sloping border surface of the matrix, as at line %#3 of Figure 2.

Figure 4 is a similar view at line 4 4 of Figure 2.

Figure 5 is a detail sectional view illustrating the manner of possible shrinkage of the material of the mask when the plastic material is setting, and Figure 6 is a view illustrating the manner of applying a filler to compensate for this shrinkage of the plastic material.

Figures 7 and 8 are plan views of portions of masks of different ornamental designs which may be used in carrying out the process of my invention.

The mold or matrix l may be of cast iron, composition material as bakelite, or other suitable material, in the upper surface of which the selected ornamental design is n-oduced. As shown in the drawings the design includes two series `of parallel grooves 2 and 3 that intersect to form blocks 4. The upper face of the matrix at its edges is sloped off as at 5 for the purpose of disposing of excess material, and al border groove 6 is fashioned within this sloping edge. The plastic material used may be a suitable gluey or adhesive substance as rubber or a composition material that will dry or set and possess a softness,

and flexibility to insure facile manipulation of the completed mask.

Preferably the prepared matrix is heated or warmed and the plastic material is poured into the grooves or other means are employed for filling the grooves or depression of the upper face of the matrix. A suit rable number of thumb screws 5 may be used to level the mold.

In the n'iolding process the mask of Figure l is fashioned with a lattice-work of intersecting series of parallel bars 7, voids or spaces 9 and a frame-border 8.

After pouring the mask may remain in the matrix to cool and set, in which event it is a. replica of the` matrix as to both shape and size. If removed from the matrix and then permitted to set or cool, the mask has a tendency to shrink, and in such event the mask will be slightly smaller in dimensions than the matrix in which it is cast or molded.

In the process of molding, the plastic mai terial as it sets or dries, has a. tendency to shrink in the grooves or recesses of the matrix as indicated at 10 in Figure 5. rlhis shrinkage is compensated for by applying a filler or backing of the plastic material indicated at 11 in Figure 6 to bring the top face of the mask flush with or a little above the upper surface of the matrix. Then the upper face of the matrix is scraped with a suitable tool to insure a smooth and flush. continuous surface comprising the face of the matrix and the mask portions in its grooves and recesses.

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The matrix may be fashioned with Various designs in its face to produce masks of complementary desi:D l2 in. Figure Y and at 13 in Figure 8.

After the mask has properly set it may be removed from its matrix. or the matrix may he inverted and the mask detached therefrom, rear y for use on the object to be ornan'iented. p y c The surface ofthe object tobe ornamented is preferably treated to coating 'of a suitable quicleclrying', thin liquid Veneer or adhesive, which may be 'applied as by a` brush, or Washed over the surface to be ornamented. rEhe mask is then applied to orpasted on the coated surface to form a'protection for the covered portion of the surface, leaving the ,i

exposed or uncovered portion of thesurface to be etched or otherwise treated. `When stone, marble'or similar surfaces are to be ornamented, andafterl the mask has been applied7 a sand-blast may be used on the surface that. is exposed to cut away or remove material therefrom and bringv out into relief the*protected'portions of the surface, Which stand out boldly after the mask has been removed. The depth of the cut may be governed by the use of the sand-blast in Well 'known manner, and after the carving' or cutting has proceeded to the required depth the mask may be detached or pulled from 'the surface of the object.

It will loe understood that the same ornament-al design may be reproduced for ornamentation by the use of other means, as an air brush to supply a liquid paint or pigment to the exposed surface ofthe object,

n7 such as indicated at faces. or large sheets or des contrasting effects.

For decoratingor ornamenting the surface of a carving or other object, portions of a mask may he used over the depressed sur- 'O'ns may be loosely laid against the object in order to reduce the boldness of the relief in the coinpleted ornamental design.

"ljlaving tl'ius fully described my invention, what I claim and desire to secure by Letters Patent isy l. The step in the process of ornamentation which consists lin pouring plastic material into a'inold to form a mask, permitting the plastic material to set and shrink, and filling the mask with material to compensate for shrinkage.

2. The process of ornamentation which consists in 'forming a mask ofplastie material and permittingpit to set and shrink, filling the mask with material to compensate for shrinkage, and aflixing the mask to the surface to be ornamented preparatory to cutting away the exposed surfaces.

3. The process of ornamentation which consists in forming a'mask of plastic matcrial and permitting it to set and shrink, filling the mask with material to compensate for shriiikage, coating the surface to be ormanented with an adhesive, and aliixing the mask to the adhesive surface to be ornamented preparatory to cutting away the exposed surfaces.

In testimony whereof have aflixed my signature.

MARTIN J. SMTH. 

